Inside ï¼assetsï¼6dba there is data1.dat, which seems compressed/encrypted. There is no audio in the assets (except one minuscule FSB5 sfx which is not worth it). Maybe the music/audio is downloaded in runtime; you should explore your data folder in your android device.
The music and audio is in AB (Android Backup, or Asset Bundle) files when they are extracted or downloaded. Is there any way to extract them with a tool or a program?
You need to have root access on your device if you want to find & copy them, as they might (i.i.r.c.) be located in a hidden, restricted-access folder (typically "/data/data/<apk_name>" for INTERNAL, "Android/data/<apk_name>" for EXTERNAL/SD).
<pk>\assets\bin\Data\* seem graphic files. All files from the OOB look encrypted. For the files extracted from the AB "containers", their first 0x20 bytes are the same, and seem to be some kind of header (maybe used for decryption?). I found "zencryptoutput" strings in ALL of the files in assetbundle. Maybe that's their origin folder? (pre-packing?) The files are extracted from the assetbundle. It's incomplete, but at least it shows that every file is encrypted.
Service ending on March 31 2026 for Teppen by J2023 at 6:49 AM EST on December 22, 2025
There's no updates to this, but unfortunately the service for TEPPEN will end on March 31, 2026. As with other mobile games (such as 404 Game Re:SET), an offline version for TEPPEN will also be released, allowing players to play with cards they have collected so far, and will be avaliable from the end of service until April 30, 2026.
The game uses the Unity engine though... I'll plan on adding the data of an APK of the game's last updated version before the service ends soon.
Checked the files on the game's current update (Ver. 7.3.7.), and it's files still have compressed encryption...
If all of this game's files are encrypted/compressed, then are there any known methods/ways or tools that can decrypt all of Teppen's game files and extract their data properly?
You can find the rip here. There's also an extra 7Zip folder inside the set for those who want to learn how to use Python and other tools like a fork of Unity Asset Studio to decrypt and extract all of TEPPEN's game data properly (such as the sound effects, graphics, and voices).
The IOS and Android versions are hard to extract since all the data is encrypted. So the only way to get the game's data is to use Google Play Games on PC, which runs the game nicely, so the game's data can be extracted easily.
As a reminder, the service for TEPPEN will end on March 30, 2026.
Ok, thank you. But another thing I hope you don't mind answering, is how do one learn to decrypt this? You mentioned that using Google Play PC was the most successful method to decrypt, and with the BGM was ripped successfully, I assume that same decryption method is how we can rip the other assets?
However, the thing is Teppen is unavailable in my country, and the Google Play Store is not very flexible when it comes to changing region to get games.
If possible, can you send the ab files over to me? I am looking forward to seeing if the Voice lines can be ripped as well.